Muscles of the Pectoral Girdle & Upper Limb (Lab) Flashcards

1
Q
A

Trapezius

O: thoracic and cervical vertebrae; occipital bone
I: Spine of scapula; clavicle
A: - Superior Fibers of Trapezius: elevate and rotate scapula
- Middle Fibers of Trapezius: retract scapula
- Inferior Fibers of Trapezius: depress scapula

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2
Q
A

Rhomboideus
1. Rhomboid Minor
2. Rhomboid Major

O: Cervical and Thoracic vertebrae
I: Medial border of scapula
A: retract scapula

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3
Q
A

Rhomboideus

O: Cervical and Thoracic vertebrae
I: Medial border of scapula
A: retract scapula

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4
Q
A

Supraspinatus

O: Supraspinous fossa of scapula
I: Greater tubercle of humerus
A: Stabilize humerus

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5
Q
A

Supraspinatus

O: Supraspinous fossa of scapula
I: Greater tubercle of humerus
A: Stabilize humerus

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6
Q
A

Infraspinatus

O: Infraspinous fossa of scapula
I: Greater tubercle of humerus
A: Stabilizes Humerus

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7
Q
A

Infraspinatus

O: Infraspinous fossa of scapula
I: Greater tubercle of humerus
A: Stabilizes Humerus

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8
Q
A

Teres Minor

O: Lateral border of scapula
I: Greater tubercle of humerus
A: Stabilizes humerus; rotate shoulder laterally

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9
Q
A

Subscapularis

O: subscapular fossa of scapula
I: Lesser tubercle of humerus
A: Stabilizes humerus; rotates shoulder medially

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10
Q
A

Subscapularis

O: subscapular fossa of scapula
I: Lesser tubercle of humerus
A: Stabilizes humerus; rotates shoulder medially

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11
Q
A

Teres Major

O: Scapula
I: Lesser tubercle of humerus
A: Extend shoulder; adduct shoulder

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12
Q
A

Teres Major

O: Scapula
I: Lesser tubercle of humerus
A: Extend shoulder; adduct shoulder

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13
Q
A

Pectoralis Major

O: sternum; upper costal cartilages
I: intertubercular groove of humerus
A: flex shoulder; adduct shoulder

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14
Q
A

Pectoralis Major

O: sternum; upper costal cartilages
I: intertubercular groove of humerus
A: flex shoulder; adduct shoulder

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15
Q
A

Pectoralis Minor

O: ribs 3,4,5
I: Coracoid process of scapula
A: protract scapula; depress scapula

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16
Q
A

Pectoralis Minor

O: ribs 3,4,5
I: Coracoid process of the scapula
A: protract scapula; depress scapula

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17
Q
A

Serratus Anterior

O: Ribs 1-8
I: Medial Border of Scapula
A: Protract scapula

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18
Q
A

Serratus Anterior

O: Ribs 1-8
I: Medial Border of Scapula
A: Protract scapula

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19
Q
A

Latissimus Dorsi

O: Thoracic and lumbar vertebrae
I: Intertubercular groove of humerus
A: Extends shoulder (primary mover)

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20
Q
A

Latissimus Dorsi

O: Thoracic and lumbar vertebrae
I: Intertubercular groove of humerus
A: Extends shoulder (primary mover)

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21
Q
A

Deltoid
1. Anterior fibers
2. Middle fibers
3. Posterior fibers

O: Clavicle; Spine of scapula
I: Deltoid tuberosity of humerus
A: - Anterior fibers: flex and medially rotate shoulder
- Middle fibers: shoulder abduction
- posterior fibers: extend and laterally rotate shoulder

22
Q
A

Deltoid

O: Clavicle; Spine of scapula
I: Deltoid tuberosity of humerus
A: - Anterior fibers: flex and medially rotate shoulder
- Middle fibers: shoulder abduction
- posterior fibers: extend and laterally rotate shoulder

23
Q
A

Triceps Brachii

O: Humerus; scapula
I: olecranon process; ulna
A: Extends elbow

24
Q
A

Triceps Brachii

O: Humerus; scapula
I: olecranon process; ulna
A: Extends elbow

25
Q
A

Biceps Brachii

O: Scapula
I: Radial tuberosity of the radius
A: flexes the elbow

26
Q
A

Biceps Brachii

O: Scapula
I: Radial tuberosity of the radius
A: flexes the elbow

27
Q
A

Brachialis

O: Humerus
I: Coronoid process of ulna
A: Flexes elbow

28
Q
A

Brachioradialis

O: Humerus

I: Styloid process; radius

A: Flexes Elbow

29
Q
A

Brachioradialis

O: Humerus

I: Styloid process; radius

A: Flexes Elbow

30
Q
A

Pronator Teres

O: Ulna

I: Radius

A: Pronates forearm

31
Q
A

Pronator Teres

O: Ulna

I: Radius

A: Pronates forearm

32
Q
A

Flexor Carpi Radialis

O: Medial epicondyle; humerus

I: Base of metacarpals

A: Flex/abduct wrist

33
Q
A

Flexor Carpi Radialis

O: Medial epicondyle; humerus

I: Base of metacarpals

A: Flex/abduct wrist

34
Q
A

Palmaris Longus

O: Medial epicondyle; Humerus

I: Palmar aponeurosis

A: Flexes wrist ( weakly)

35
Q
A

Palmaris Longus

O: Medial epicondyle; Humerus

I: Palmar aponeurosis

A: Flexes wrist ( weakly)

36
Q
A

Flexor Carpi Ulnaris

O: Medial Epicondyle; humerus

I: Base of metacarpal V

A: Flexes wrist; adducts wrist

37
Q
A

Flexor Carpi Ulnaris

O: Medial Epicondyle; humerus

I: Base of metacarpal V

A: Flexes wrist; adducts wrist

38
Q
A

Flexor Digitorum Superficialis

O: Medial epicondyle; humerus

I: Middle phalanges of digits

A: flex fingers

39
Q
A

Flexor Digitorum Superficialis

O: Medial epicondyle; humerus

I: Middle phalanges of digits

A: flex fingers

40
Q
A

Extensor Carpi Radialis
1. Extensor Carpi Radialis Longus
2. Extensor Carpi Radialis Brevis

O: Lateral Epicondyle; Humerus

I: Base metacarpal II

A: Extend/abduct wrist

41
Q
A

Extensor Carpi Radialis

O: Lateral Epicondyle; Humerus

I: Base metacarpal II

A: Extend/abduct wrist

42
Q
.
A

Extensor Digitorum

O: Lateral Epicondyle; Humerus

I: Distal phalanges of fingers

A: Extend fingers

43
Q
A

Extensor Digitorum

O: Lateral Epicondyle; Humerus

I: Distal phalanges of fingers

A: Extend fingers

44
Q
A

Extensor Carpi Ulnaris

O: Lateral epicondyle; humerus

I: base of metacarpal V

A: Extend wrist; adduct wrist

45
Q
A

Extensor Carpi Ulnaris

O: Lateral epicondyle; humerus

I: base of metacarpal V

A: Extend wrist; adduct wrist

46
Q
A

Flexor Retinaculum

47
Q
A

Palmar aponeurosis

48
Q
A

Thenar Muscles

A: flex/adduct thumb

Group of four muscles

49
Q
A

Palmar Muscles (group of 3 muscles)

A: abduct/flex fingers

50
Q
A

Trapezius

O: thoracic and cervical vertebrae; occipital bone
I: Spine of scapula; clavicle
A: - Superior Fibers of Trapezius: elevate and rotate scapula
- Middle Fibers of Trapezius: retract scapula
- Inferior Fibers of Trapezius: depress scapula

51
Q
A
  1. Superior fibers of trapezius
  2. Middle fibers of trapezius
  3. Inferior fibers of trapezius